Hourly Weather | Today Thursday, May 21, 2026
Sterling Heights, Michigan
2 AM
Cloudy Night
43°
Feels Like 37°
0
Humidity: 73%
UV Index: 0
Wind: 7 mph
3 AM
Cloudy Night
41°
Feels Like 37°
0
Humidity: 70%
UV Index: 0
Wind: 7 mph
4 AM
Cloudy Night
39°
Feels Like 36°
0
Humidity: 73%
UV Index: 0
Wind: 7 mph
5 AM
Cloudy Night
39°
Feels Like 36°
0
Humidity: 76%
UV Index: 0
Wind: 7 mph
6 AM
Cloudy Night
37°
Feels Like 36°
0
Humidity: 80%
UV Index: 0
Wind: 7 mph
7 AM
Cloudy Weather
39°
Feels Like 37°
0
Humidity: 78%
UV Index: 1
Wind: 7 mph
8 AM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 71%
UV Index: 2
Wind: 8 mph
9 AM
Cloudy Weather
46°
Feels Like 46°
0
Humidity: 65%
UV Index: 3
Wind: 9 mph
10 AM
Cloudy Weather
52°
Feels Like 52°
0
Humidity: 60%
UV Index: 5
Wind: 9 mph
11 AM
Cloudy Weather
54°
Feels Like 55°
0
Humidity: 56%
UV Index: 5
Wind: 10 mph
12 PM
Cloudy Weather
57°
Feels Like 61°
0
Humidity: 51%
UV Index: 6
Wind: 10 mph
1 PM
Cloudy Weather
59°
Feels Like 63°
0
Humidity: 46%
UV Index: 6
Wind: 10 mph
2 PM
Cloudy Weather
61°
Feels Like 64°
0
Humidity: 44%
UV Index: 5
Wind: 10 mph
3 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 43%
UV Index: 4
Wind: 10 mph
4 PM
Cloudy Weather
63°
Feels Like 63°
0
Humidity: 42%
UV Index: 3
Wind: 10 mph
5 PM
Cloudy Weather
63°
Feels Like 61°
0
Humidity: 44%
UV Index: 2
Wind: 10 mph
6 PM
Cloudy Weather
61°
Feels Like 59°
0
Humidity: 45%
UV Index: 2
Wind: 10 mph
7 PM
Cloudy Weather
59°
Feels Like 55°
0
Humidity: 47%
UV Index: 1
Wind: 10 mph
8 PM
Cloudy Weather
55°
Feels Like 52°
0
Humidity: 51%
UV Index: 0
Wind: 10 mph
9 PM
Cloudy Night
54°
Feels Like 48°
0
Humidity: 55%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
50°
Feels Like 46°
0
Humidity: 58%
UV Index: 0
Wind: 8 mph
11 PM
Cloudy Night
46°
Feels Like 45°
0
Humidity: 62%
UV Index: 0
Wind: 7 mph

Hourly Air Quality Forecast - AQI (US EPA)

2 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.9 µg/m³
  • PM10: 3.57 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.9 ppb
  • SO2: 1.8 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.78 µg/m³
  • PM10: 3.41 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.8 ppb
  • SO2: 1.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.62 µg/m³
  • PM10: 3.25 µg/m³
  • O3: 0.041 ppm
  • NO2: 2.9 ppb
  • SO2: 1.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.46 µg/m³
  • PM10: 3.11 µg/m³
  • O3: 0.041 ppm
  • NO2: 3 ppb
  • SO2: 1.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.17 µg/m³
  • PM10: 2.83 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 AM
36 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.79 µg/m³
  • PM10: 2.47 µg/m³
  • O3: 0.039 ppm
  • NO2: 3.5 ppb
  • SO2: 1.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.28 µg/m³
  • PM10: 1.98 µg/m³
  • O3: 0.040 ppm
  • NO2: 3.8 ppb
  • SO2: 1.4 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.96 µg/m³
  • PM10: 1.64 µg/m³
  • O3: 0.041 ppm
  • NO2: 3.2 ppb
  • SO2: 1.5 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.09 µg/m³
  • PM10: 1.77 µg/m³
  • O3: 0.042 ppm
  • NO2: 2.7 ppb
  • SO2: 1.6 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
40 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2 µg/m³
  • PM10: 2.69 µg/m³
  • O3: 0.043 ppm
  • NO2: 2.2 ppb
  • SO2: 1.7 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.37 µg/m³
  • PM10: 3.99 µg/m³
  • O3: 0.047 ppm
  • NO2: 1.5 ppb
  • SO2: 1.5 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
47 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.36 µg/m³
  • PM10: 4.92 µg/m³
  • O3: 0.051 ppm
  • NO2: 0.9 ppb
  • SO2: 1.2 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.25 µg/m³
  • PM10: 4.76 µg/m³
  • O3: 0.053 ppm
  • NO2: 0.6 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.83 µg/m³
  • PM10: 4.33 µg/m³
  • O3: 0.055 ppm
  • NO2: 0.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

4 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.05 µg/m³
  • PM10: 4.57 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.5 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

5 PM
56 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.22 µg/m³
  • PM10: 4.78 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.6 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

6 PM
55 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.41 µg/m³
  • PM10: 5 µg/m³
  • O3: 0.056 ppm
  • NO2: 0.8 ppb
  • SO2: 0.9 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 PM
53 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.83 µg/m³
  • PM10: 5.47 µg/m³
  • O3: 0.055 ppm
  • NO2: 1 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 PM
50 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.58 µg/m³
  • PM10: 5.27 µg/m³
  • O3: 0.054 ppm
  • NO2: 1.3 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
49 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.22 µg/m³
  • PM10: 4.96 µg/m³
  • O3: 0.053 ppm
  • NO2: 1.5 ppb
  • SO2: 1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.27 µg/m³
  • PM10: 5.05 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.6 ppb
  • SO2: 1.1 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
48 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.55 µg/m³
  • PM10: 5.37 µg/m³
  • O3: 0.052 ppm
  • NO2: 1.9 ppb
  • SO2: 1.1 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.